Earlier this week, Microsoft stopped the publishing of new Windows Phone apps. The company said it found an issue where where the digital certificates that are used to sign apps were stopping some apps from being installed on some Windows Phone devices. This problem only affected phones that upgraded from an older version of Windows Phone to the current Windows Phone 7.5 OS.

Today, in an update on the Windows Phone blog, Microsoft said it fixed the issue on Wednesday evening and as such, it has started the process of publishing new apps to the Windows Phone Marketplace. The blog post added:

It will take a day or two for the repair to fully deploy and newly-published apps to begin appearing in Marketplace again. If your app was in the process of being published, you don’t need to take any action. We have applied the fix and the app will continue through the certification and publishing workflow as normal.

The digital certificates problem started just a few days after Microsoft launched the Windows Phone Dev Center, the new location where developers can submit and certify their apps for publication. Hopefully, Microsoft can keeps these kinds of bugs down to a minimal as we approach the launch later this fall of Windows Phone 8 and a new line of Windows Phone products.